What is CVE-2018-20230?

CVE-2018-20230 is a high-severity vulnerability in GNU Pspp, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2018-12-19.

How severe is CVE-2018-20230?

High severity. CVSS v3 base score is 7.8 out of 10.

Buffer overflow in GNU Pspp

CVE-2018-20230

An issue was discovered in PSPP 1.2.0. There is a heap-based buffer overflow at the function read_bytes_internal in utilities/pspp-dump-sav.c, which allows attackers to cause a denial of service (application crash) or possibly have unspecified other impact.

Vulnerability class: Buffer Overflow

Published 2018-12-19 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.008 (56.2th percentile), scored 2026-10-20.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 56.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

GNU Pspp — versions 1.2.0

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

bugzilla.redhat.com/show_bug.cgi (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2018-20230?: CVE-2018-20230 is a high-severity vulnerability in GNU Pspp, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2018-12-19.
How severe is CVE-2018-20230?: High severity. CVSS v3 base score is 7.8 out of 10.